MathQuarryCalculators

Numbers / 660

The Number 660

660 is composite: factorization 2^2 × 3 × 5 × 11. That gives 660 exactly 24 divisors: 1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660. 660's proper divisors total 1356, 696 more than 660 itself, so 660 is abundant. 660 has a digit sum of 12; for 660, the digital root works out to 3. 660: 2, 3, 4, 5, 6, 10, 11, 12 all divide 660 evenly, out of 2-12. 660 is 1010010100 in binary and 294 in hex; as a Roman numeral it's DCLX.

Factors
1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660
Number of factors
24
Prime?
No
Prime factorization
2^2 x 3 x 5 x 11
Even or odd
Even
Square
435600
Cube
287496000
Binary
1010010100
Hexadecimal
294
Roman numeral
DCLX
Perfect square?
No
Perfect cube?
No
Perfect number?
No
Triangular number?
No
Fibonacci number?
No